Home / 19,922.29-29,865.65-7,432.70

Finding the Fourth Proportional to 19,922.29, 29,865.65 and 7,432.70

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Solution

The fourth proportional to 19,922.29, 29,865.65 and 7,432.70 is: 11,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.29 : 29,865.65 = 7,432.70 : x
  2. Step 2: Convert to fraction form
    19,922.29/29,865.65 = 7,432.70/x
  3. Step 3: Cross multiply
    19,922.29x = 29,865.65 × 7,432.70
  4. Step 4: Simplify right side
    19,922.29x = 221,982,230.26
  5. Step 5: Solve for x
    x = 221,982,230.26/19,922.29
  6. Step 6: Final answer
    x = 11,142.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.